Home / 31,622.46-43,654.24-20,308.84

Finding the Fourth Proportional to 31,622.46, 43,654.24 and 20,308.84

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Solution

The fourth proportional to 31,622.46, 43,654.24 and 20,308.84 is: 28,035.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,622.46 : 43,654.24 = 20,308.84 : x
  2. Step 2: Convert to fraction form
    31,622.46/43,654.24 = 20,308.84/x
  3. Step 3: Cross multiply
    31,622.46x = 43,654.24 × 20,308.84
  4. Step 4: Simplify right side
    31,622.46x = 886,566,975.48
  5. Step 5: Solve for x
    x = 886,566,975.48/31,622.46
  6. Step 6: Final answer
    x = 28,035.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.